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Electromagnetic Induction Video Tutorial 2 - Lenz's Law

Lenz’s law states that the direction of the induced current is such that its magnitude will always opposes the flux change that causes it. This is a simple experiment that demonstrates Lenz’s Law.

Simple Harmonic Motion Video Tutorial

Before we go into the study of wave and its interference, it’s imperative that we understand the basic of a periodic motion, in particular the simple harmonic motion (SHM). In this chapter, we will be exploring the kinematics and energy of a simple harmonic motion. In the later part of this chapter, we will introduce damped oscillation where energy is lost from the oscillating system and also the forced oscillation where energy is added to the oscillating system by an external driving force. An important application to this is the phenomenon of resonance.

Electromagnetism Video Tutorial Part 2

In the fifth century B.C., the Greeks already knew that there are some rocks that attract bits of iron. And they are very plentiful in the district of Magnesia, and so that's where the name "magnet" and "magnetism" comes from. In eleven hundred A.D., the Chinese used these needles of magnetite to make compasses, and in the thirteenth century, it was discovered that magnetites have two places of maximum attraction, which we call poles. So if you take one piece of magnetite, it always has two poles. Let's call one pole A, and the other B. A and A repel each other, B and B repel each other, but A and B attract each other.

Electromagnetism Video Tutorial Part 1

In the fifth century B.C., the Greeks already knew that there are some rocks that attract bits of iron. And they are very plentiful in the district of Magnesia, and so that's where the name "magnet" and "magnetism" comes from. In eleven hundred A.D., the Chinese used these needles of magnetite to make compasses, and in the thirteenth century, it was discovered that magnetites have two places of maximum attraction, which we call poles. So if you take one piece of magnetite, it always has two poles. Let's call one pole A, and the other B. A and A repel each other, B and B repel each other, but A and B attract each other.

Principle of Conservation of Momentum Video Tutorial

When a body is not moving, we understand that it is in static equilibrium. The resultant force acting on the body and the resultant torque about any point would be zero. Conversely, if the resultant force acting on the body is not zero, the body will changes its state of motion, or we say the body accelerates according to Newton’s laws. In this chapter, we will analyse how forces acting on a body will cause it to accelerate. We will also explore the case when masses collide with each other and learn more about the Principle of Conservation of Momentum.